Uri.Type is a type facet in the Power Query M language. It represents one of the type claims belonging to ‘type text’. It is used primarily for interacting with external systems like Power BI, where web resource type information is beneficial. The base type of ‘type text’ in Power Query is a general text type, but facets like Uri.Type provide additional details (such as indicating that the text is a Uniform Resource Identifier) to external systems or tools for enhanced web data management.
Examples
Generally, you will face a facet when transforming column types. You can transform a column into the specified type by using Table.TransformColumnTypes:
Table.TransformColumnTypes( Source, {{ "myColumn", Uri.Type }} )
Or when adding a column using Table.AddColumn:
Table.AddColumn( Source, "myColumn", "myText", Uri.Type" )
To inspect the kind of value you are dealing with, you can make use of the Table.Schema function. Applying it to a table returns a table with information about your columns. The Table.SingleRow function then transforms the result into a record, for easier reading.
let
a = "myText",
// Ascribes a type claim facet for 'type text'
b = Value.ReplaceType( a, Uri.Type ),
// Returns a table containing a value with the ascribed "Uri.Type"
c = #table(type table [Col1 = Value.Type( b ) ], { b } ),
// Shows the Table information, including typeName and value kind
d = Table.Schema( c ),
// For easier viewing, return table as record
e = Table.SingleRow( d )
in
e
Related facets
Other related facets are:
- Any.Type
- Binary.Type
- Byte.Type
- Character.Type
- Currency.Type
- Date.Type
- DateTime.Type
- DateTimeZone.Type
- Decimal.Type
- Double.Type
- Duration.Type
- Function.Type
- Guid.Type
- Int16.Type
- Int32.Type
- Int64.Type
- Int8.Type
- List.Type
- Logical.Type
- None.Type
- Null.Type
- Number.Type
- Password.Type
- Percentage.Type
- Record.Type
- Single.Type
- Table.Type
- Text.Type
- Time.Type
- Type.Type
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